Knowledge Base

Program Trial Control (Continued)

You can choose to record video first and then acquire data from the resulting video file. You do this by selecting Save video only, track later in the Acquisition screen.

When recording video, Trial Control is turned off. You get an appropriate message when selecting the option Save video only, track later.

When you track from the video recorded in the previous stage, Trial Control for Start-Stop is activated, but you cannot control hardware devices.

Re-Do a Trial

For video files recorded with EthoVision, you can re-do the corresponding trial (see Redo trials in the EthoVision XT Help). However, if you re-do a trial the Trial Control log files recorded with the previous instance of the trial are deleted.

Stop a Trial

When you stop the trial, all rules active in the Trial Control Settings are ended immediately, and hardware devices are reset.

The Start-Stop Trial Rule

Source: EthoVision XT 18 - THC - Trial and Hardware Control, Noldus Information Technology